<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<title>Chat</title>
</head>
<body>

<pre class="brush:php;toolbar:false">

  <header class="header">
    <a class="back" href="javascript:history.back()" rel="external nofollow" ></a>
    <h5 class="tit">在线聊天</h5>
    <a href=""><div class=" rel="external nofollow" right">退出</div></a>
  </header>

  <!-- 聊天内容 start-->
    <div class="message"> </div>
  <!-- 聊天内容 end-->

  <!-- 底部 start-->
  <div class="footer">
    <input type="text" id="msg" value="" maxlength="300">
    <p style="background: rgb(17, 79, 142);" id="sendBtn">发送</p>
  </div>
  <!-- 底部 end-->
</body>
</html>

<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/layer/3.1.0/layer.js"></script>
<script type="text/javascript">
  $(function () {
    var uid = 666;//当前用户id
    var token = 'abcdefg';//用户token

    //判断浏览器是否支持WebSocket
    var supportsWebSockets = 'WebSocket' in window || 'MozWebSocket' in window;
    if (supportsWebSockets) {
      //建立WebSocket连接（ip地址换成自己主机ip）
      var ws = new WebSocket("ws://127.0.0.1:8090?uid="+uid+"&token="+token);
      ws.onopen = function () {
        layer.msg('服务器连接成功',{shade:0.1,icon:1,time:600});
      };
      ws.onerror = function () {
        layer.msg('服务器连接失败',{shade:0.1,icon:2,time:600});
      };
      ws.onmessage = function (evt) {
        console.log(evt.data);
      };
      ws.onclose = function (res) {
        console.log(res.data);
      };
      //按钮发送
      $("#sendBtn").click(function () {
        var contents = $("#msg").val().trim();
        if(contents == null || contents == ""){
          layer.msg('内容为空',{shade:0.1,icon:2,time:600});
          return false;
        }else{
          console.log(contents)
          ws.send(contents);
          $("#msg").val("");
        }
      });
      //回车发送
      $("#msg").keydown(function (evel) {
        var that = $(this);
        if (evel.keyCode == 13) {
          evel.cancelBubble = true;
          evel.preventDefault();
          evel.stopPropagation();
          var contents = that.val().trim();
          if(contents == null || contents == ""){
            layer.msg('内容为空',{shade:0.1,icon:2,time:600});
            return false;
          }else{
            ws.send(contents);
            that.val("");
          }
        }
      });
    }else{
      layer.alert("您的浏览器不支持 WebSocket!");
    }
  });
</script>